Predators:
* Great Black-backed Gull: These large gulls are known to prey on loon chicks and occasionally even adult loons, especially if they are injured or weakened.
* Bald Eagle: Bald eagles are powerful predators that can take down adult loons, though this is less common.
* Snakes: While not as common, some larger snakes like garter snakes and water snakes may occasionally prey on loon chicks.
* Bears: Brown bears and black bears can potentially prey on loons, especially on land or near the shoreline, although this is not a frequent occurrence.
Other Threats:
* Human activities: Habitat loss, water pollution, and boat traffic can all negatively impact loon populations, making them more vulnerable to predators and other threats.
It's important to note that loons have developed defenses to protect themselves from predators. They are powerful swimmers and divers, and their sharp beaks can inflict serious injuries. They also have a loud, piercing call that can be used to alarm others and deter attackers.